Auxiliary air-valve.



H. C. MEYER.

AUXILIARY'AIR VALVE.

APPLICATION FILED MAR. 22. I916- Patented Mar. 27, 191'].

fi. #3 J3 E 1 2 VVITNESSES:

\ 1:; c. MEYER, or sen rnnncrsco, CALIFORNIA, nssrenon TO ans n. noonnn,

orsan rnanorsco, cnmronnm.

AUXILIARY are-verve.

Specification of Letters Patent. Patented Main, 2?, light.

Application and names, 1916. Serial no. eases.

To all whom it may concem:

Be it. known that I, :HENRX C. Maren-a citizen of the United States, residing in the city and county of San Francisco and State 5 of California, haveinvented new and useful Improvements in Auxiliary Air-Valves, of which the following is a specification.

This invention relates to an auxiliary air valve for internal combustion'engines.

It is an object of the present invention to provide a simple, compact, cheaply manu- The invention consists of the parts and the. construction and combination of parts as hereinafter more fully described and claimed, having reference to the accompanying drawings, in which- Fi re 1 isa side elevation of an engine, showing the application of the invention.

Fig. 2 is a side elevation of the gas saver. Fig. 3 is a central, vertical section through same.

Fig. A is a central, vertical section through the cap.

Fig. 5 is a cross section on line 5--5" of Fig. 4. v

Fig. 6 is a cross section on line 6--6 of .Fi t. a 4

Feferring to the drawings in detail, A indicates a andard type of internal combustion engine; 9; the intake manifold; and 3 the carbureter. The purpose of the present invention is'to provide a simple form of mechanism, such as indicated at B, by which] a variable amount of air, proportional to the speed of the engine,ma be admitted.

' toward its seat cuttin venting, the flow of air therethrough. The,

to the intake manifold. V p

The construction of the auxiliary air valve, generally indicated at B,*will' be as follows: 5 indicates an elbow, one end of which is threaded, as at 6, to permit it to be screwed into the intake manifold 2 at any convenient point between the carbureter. and the inlet valves. The opposite end of the elbow is also threaded, as at 7, and considerably extended or lengthened for purposes to be hereinafter described.

Adapted to be screwed down over the threaded end 7 of the elbow is a cylindricalshaped cap 8 provided within. valve seat.9 in its upper end and an opening 10 for the admission of air. Adapted to normally close the'opening is a ball-check 11 which is held against the seat 9 by means of a coil spring 12, interposed between the ball and the upper threaded end 7 of the elbow. The threaded long end of the elbow permits the tension of the spring to be increased or decreased by screwing the cap 8 up or down upon the threaded section and a lock nut 14 permits the {cap to be locked against movev ment when an adjustment has been made.

Formed interiorly of the cap is a plurals ity of grooves 15 which communicate with the, valve seat 9 and the upper opening 10. These grooves are comparatively narrow at the upper end and increase considerably in width toward the lower end, as indicatedat 16. The interior bore of the cap is just large enough to. permit the ball-check to move up and down interiorly thereof, thus not only forming a perfect guide for the follows With the engine running therei's a tendency to form a vacuum in the manifold and ball-check and spring 12, but it also provides v a means whereby the volume of air admitted through opening 10 may be increased or decreased proportionally to the movement of the ball-check '11.

thus cause the valve 11 to open and. admit.

auxiliary air house of a difi'erence between the atmosphericpressure on the outside of the casmgS and the pressure inside the casing and manifold. As the vacuum in creases the valve will be moved farther away from its'seat and the increasing size of the grooves 15 will allow of a greater quantity of air entering 'therethrou'gh. As the vacuum decreases the valve will. be moved ad, or entirely predegree of opening of the valve for a given vacuum is determined by the tension of the spring 12 which maybe easily adjusted.

speed developed, The device is, further- The device as a whole, constructed as here may dictate.

I'wish it understood that various changes in form, proportions and minor details of construction may be resorted to within the scope of the appended claims and that I do not wish to limit myself to the specific design and construction here shown.

Having thus described my invention, what I claim and desire to secure by Letters Patent is 1. An auxiliary. air valve comprising an elbow adapted to be connected with the intake mani fold on an internal combustion engine, an elongated cap having an air intake opening formed in one end adjustably mounted on the elbow, said cap having a plurality of V- shaped grooves formed on its interior surface,.a ball-check adapted to normally close said opening, and a spring engageable with the ball-check. v

2. An auxiliary air valve comprising an elongated cylindrical shaped member having an air ntake opening in one end and a plurality of -V-shaped grooves formed on its interior surface, a threadedextension on the end opposite the air intake adapted to receive the threaded end of anelbow or nipple to form a connection with an intake manifold, 'a valve adapted to close the air intake opening, a spring engageable with the valve and means for increasing or decreasing the tension of the spring.

In testimony whereof I have hereunto set .my hand in the presence-0f two subscribing witnesses.

HENRY o. MEYER.

' Witnesses:

NITA E. PENFIELD,

W. W. HEALEY. 

